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Grade 11Vectors

solve this vectors of OA=I+J+K ; AB=3I-2J+K; BC=I+2J-2K and CD =2I+J+3K
FIND OD VECTOR

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10 Years agoGrade 11
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1 Answer

Profile image of PASUPULETI GURU MAHESH
10 Years ago
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GIVEN VECTORS OA=I+J+K;AB=3I-2J+K;BC=I+2J-2K AND CD=2I+J+3K

WE KNOW THAT VECTOR AB =OB-OA

3I-2J+K= OB-( I+J+K)

OB=4I-J+2K

SIMILARLY BC =OC-OB

I+2J-2K=OC-(4I-J+2K)

OC=5I+J

 

CD=OD-OC

2I+J+3K = OD -(5I+J)

OD=7I+2J+3K

THERE FORE VECTOR OD 7I+2J+3K

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